It was actually the daughter-in-law... The unfaithful wife caught in an affair by her father-in-law. (Fujimori Riho NACR-312)

My daughter-in-law, Fujimori Riho, brought her mistress to our house when my son wasn't home. But I can't tell my son about this, because I, as her father-in-law, also have a physical relationship with her…